"It is good for the heart to be strengthened by grace"

Could this be it?

“Live as if you thought that Christ might come at any time. Do everything as if you were doing it for the last time. Say everything as if you were saying it for the last time. Read every chapter in the Bible as if you did not know whether you would be allowed to read it again. Pray every prayer as if you felt it might be your last opportunity. Hear every sermon as if you were hearing once and forever. This is the way to be found ready. This is the way to turn Christ’s second appearance into a good account. This is the way to put on the armor of light.”